Smarter Power: The Shale Gas Revolution and Cleaner Energy

1. Natural Gas Smarter Power Today NASUCA Mid-Year Meeting June 28, 2011 San Antonio, TX James Tramuto Southwestern Energy Company Vice President Governmental & Regulatory Strategies 1

3. ANGA Members 3

4. The Shale Gas Revolution Cody Bakken Gammon EIA: 2011 862TCF shale 2,543TCF total 67% INCREASE in just three years Mowry Antrim Baxter-Mancos Marcellus/ Devonian/Utica Niobrara Mancos Pierre Mulky New Albany Lewis Fayetteville Woodford Barnett- Woodford Floyd-Neal Barnett Haynesville Eagle Ford Source: EIA Annual Energy Outlook, 2008 to 2011

5. Horizontal Drilling Horizontal Drilling Traditional Wells

6. Hydraulic Fracturing Groundwater aquifers Multiple protective layers extend from surface to below aquifers. Private well, about 500 feet deep Public well, about 1,000 feet deep Several layers of steel tubes encased in cement protect groundwater supplies Protective steel casing encased in cement extends to shale depth Shale Fractures Depth from surface is typically more than a mile

7. Safety At the Surface Multiple Layers of Groundwater Protection Surface Casing Cement Steel Surface Casing Aquifer Production Casing Cement Steel Production Casing Production Tubing

8. Frack Fluid Makeup Additives - 0.5% Acid Friction Reducer Surfactant Gelling Agent Scale Inhibitor pH Adjusting Agent Breaker Crosslinker Iron Control Corrosion Inhibitor Antibacterial Agent Clay Stabilizer Water & Sand 99.5%

9. The Power of Progress • Smaller surface impact • Fewer wells, more clean energy • Less waste • Fewer air emissions

10. A Regulated Process • The Clean Water Act regulates surface water discharges and storm-water runoff. • The Clean Air Act sets rules for air emissions from engines, gas processing equipment and other sources associated with drilling and production activities. • The Safe Drinking Water Act regulates the disposal of fluid waste deep underground (far below fresh water supplies and separated by approximately one mile of impermeable rock). • The National Environmental Policy Act requires permits and environmental impact assessments for drilling on federal lands. • The Occupational Safety and HealthAct sets standards to help keep workers safe. These include requiring Material Safety Data Sheets be maintained and readily available onsite for any chemicals used by workers at that location. • The Emergency Planning & Community Right-to-Know Act requires storage of regulated chemicals in certain quantities to be reported annually to local and state emergency responders.

11. Texas Out in Front With Disclosure • H.B. 3328 signed into law on June 17, 2011 • Texas is the first state to legislatively require full disclosure of chemicals used in hydraulic fracturing. • Already done voluntarily by many in the industry, this bill makes well-by-well disclosure mandatory in the state.

12. What Officials Say Pennsylvania Department of Environmental Protection • "It's our experience in Pennsylvania that we have not had one case in which the fluids used to break off the gas from 5,000 to 8,000 feet underground have returned to contaminate ground water…There's a lot of focus in the media and the public on the problems that we have not had." DEP Secretary John Hanger, Reuters, Oct. 4, 2010 Texas Railroad Commission • “Not only have the states traditionally regulated hydraulic fracturing, an IOGCC survey concluded that not a single instance of harm to drinking water was found in over one million hydraulic fracturing operations. Thus, state regulation has proved effective in protecting drinking water from all drilling activities, including hydraulic fracturing.” TRRC Chairman Victor Carrillo Testimony to the U.S. House Committee On Energy And Commerce, February 2005

13. Voluntary Disclosure System • FracFocus.org, created by GWPC and IOGCC

14. About the Registry • The registry uses Risk Based Data Management System (RBDMS) as the technology platform. • RBDMS is already used by 25 state agencies charged with regulating and overseeing oil and gas activities. • Developed by the GWPC under the guidance of the U.S. DOE • The registry offers a centralized, global site where regulators, companies and the public can come for reliable and current information on individual wells. • Since its launch in April, 44 companies have registered to disclose data, and information is currently posted on more than 1500 wells. Already, the site has received more than 30,000 visits from 89 countries.

15. Water Use • A typical deep shale gas well stimulation = ~ 5 million gallons • A 1,000 megawatt coal-fired power plant in 8.5 hours • A 1,000 megawatt nuclear power plant in 4.5 hours • Six acres of corn in a season • Watering one golf course for a month • Water used in extraction is only a small percentage of the total water-resource use in each shale gas area (typically between 0.1% and 0.8% of total water use by basin).

16. Water Use Comparison Gallons of Water Per MWh Electricity Generated Avg. consumption for cooling Avg. consumption for fuel 750 704 472 364 204 114 14 0 52 34 Source: Hightower 2008 (other than CHK data) *Average consumption for fuels; Chesapeake data Note: Wind turbines and photovoltaic solar panels have negligible water demands MWh = megawatt-hour

17. Arkansas Water Uses Percent of Statewide Water Consumption SWN Operations (7 Million gallons per day) .06% City of Little Rock (65 Million gallons per day) .5% Duck Hunting Clubs (270 Million gallons per day) 2.3% Power Plants (2 Billion gallons per day) 17% Irrigation (8.3 Billion gallons per day) 72% Total Statewide Consumption: 11,500 Million gallons per day Source: U.S. Geological Survey; Central Arkansas Water; Southwestern Energy.

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